/*
 * md5.h
 *
 *  Created on: Nov 3, 2016
 *      Author: swolice
 */

#ifndef MD5_H_
#define MD5_H_

typedef struct {
	unsigned int count[2];
	unsigned int state[4];
	unsigned char buffer[64];
} MD5_CTX;



#define F(x,y,z) ((x & y) | (~x & z))
#define G(x,y,z) ((x & z) | (y & ~z))
#define H(x,y,z) (x^y^z)
#define I(x,y,z) (y ^ (x | ~z))
#define ROTATE_LEFT(x,n) ((x << n) | (x >> (32-n)))
#define FF(a,b,c,d,x,s,ac) \
          { \
          a += F(b,c,d) + x + ac; \
          a = ROTATE_LEFT(a,s); \
          a += b; \
          }
#define GG(a,b,c,d,x,s,ac) \
          { \
          a += G(b,c,d) + x + ac; \
          a = ROTATE_LEFT(a,s); \
          a += b; \
          }
#define HH(a,b,c,d,x,s,ac) \
          { \
          a += H(b,c,d) + x + ac; \
          a = ROTATE_LEFT(a,s); \
          a += b; \
          }
#define II(a,b,c,d,x,s,ac) \
          { \
          a += I(b,c,d) + x + ac; \
          a = ROTATE_LEFT(a,s); \
          a += b; \
          }

extern void MD5Init(MD5_CTX *context);
extern void MD5Update(MD5_CTX *context,unsigned char *input,unsigned int inputlen);
extern void MD5Final(MD5_CTX *context,unsigned char digest[16]);




#endif /* MD5_H_ */
